Fence Rules in Saint John, NB

Quick tool

Check Saint John by fence location.

Use this as a shortcut for simple municipal height tables, not as a replacement for complex zoning language.

Before you build

Before you set the posts in Saint John

Check the fence by where it sits on the lot, not only by its overall height. Front yards, interior side yards, street-facing side yards, rear yards and corner sight triangles can use different limits. A retaining wall below the fence can also change how the municipality measures the combined structure.

Confirm the legal property line before placing posts. Utility easements, rights-of-way and drainage routes can restrict a fence even when its height complies. If the fence encloses a pool or hot tub, use the municipality’s separate enclosure and gate rules rather than relying on the ordinary residential-fence result.

For an over-height fence, unusual material, corner lot or fence on top of a retaining wall, confirm whether a development, zoning, building or variance approval is required before buying materials. The official local source below controls if it differs from this guide.

Current official sourcePage data snapshot updated September 21, 2026

October 2026 municipal source review

City of Saint John: no permit for a fence no more than 2.0 m with zero property-line setback, subject to zone and unsafe-material/climbing restrictions; taller fences may need a variance.

This describes published general rules, not automatic permission for any individual lot. Confirm corner/sightline geometry, pool fences, local zoning or approved variances.

Official municipality fence rules ↗

Saint John: current official fence source

Open Saint John official fence/zoning source ↗

Use Southern New Brunswick only as location context. Height, visibility and enclosure rules still need the current Saint John source.

Before materials: four local checks

Front, side or rear?

Do not carry a rear-yard maximum into the front yard. Municipal tables commonly separate those locations.

Corner or driveway?

Corner sightlines can require a lower or more open treatment near an intersection even when a taller fence is allowed elsewhere.

Pool or hot tub?

Water-safety enclosures can add minimum heights and gate controls, so a standard fence design may need changes.

Retaining wall?

Wall plus fence can be a separate zoning issue. Check both structures before setting posts on a raised edge.

Before building on a Saint John lot

If the lot slopes, verify the city’s height-measurement method before assuming the panel height is measured from the same grade everywhere.

Before placing posts on a disputed line, confirm the legal boundary. Municipal fence permission is not a land-title determination.

Water-safety barriers are special-purpose fences. Confirm the current enclosure bylaw before construction.

Sources

Current official sourceSaint John — official fence/zoning source ↗

Official source reviewed September 21, 2026. Property-specific zoning, grade, corner visibility, pool, retaining-wall and boundary conditions can still change the answer.